Merge pull request #10 from ramya-rao-a/unused-code

Remove unused code

Merge pull request #9 from ramya-rao-a/track-2-update

Update v3/index.js

Update warning

Add warning

More Track 2 updates

Update README.md

Move to Track2 (#7)

Update README.md

dependency on npm packages

minor fixes

note export

updated dependencies based on remote public repo

finished implementation, working on local machine